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  1. /**
  2.  * Definition for singly-linked list.
  3.  * struct ListNode {
  4.  *     int val;
  5.  *     ListNode *next;
  6.  *     ListNode(int x) : val(x), next(NULL) {}
  7.  * };
  8.  */
  9. ListNode* Solution::reverseBetween(ListNode* A, int B, int C) {
  10.     int m = B, n = C, N = 0;
  11.  
  12.     ListNode *a = A;
  13.     while(a != 0){
  14.         N++;
  15.         a = a->next;
  16.     }
  17.  
  18.  
  19.     ListNode **nodeAtIdx = new ListNode *[N];
  20.     a = A;
  21.     for(int i = 0; i < N; i++){
  22.         nodeAtIdx[i] = a;
  23.         a = a->next;
  24.         cout << "node" << endl;
  25.     }
  26.  
  27.     int j = 0;
  28.     for(int i = m - 1; i < (m + n) / 2; i++, j++){
  29.         a = nodeAtIdx[i];
  30.         ListNode *b = nodeAtIdx[n - j - 1];
  31.  
  32.         cout << "i: " << i << endl;
  33.         cout << "a: " << a->val << endl;
  34.         cout << "b: " << b->val << endl;
  35.  
  36.         int tmp = a->val;
  37.         a->val = b->val;
  38.         b->val = tmp;
  39.     }
  40.  
  41.     return A;
  42. }
  43.  
Compilation error #stdin compilation error #stdout 0s 0KB
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stdin
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Standard input is empty
compilation info 
prog.cpp:9:1: error: ‘ListNode’ does not name a type
 ListNode* Solution::reverseBetween(ListNode* A, int B, int C) {
 ^~~~~~~~
stdout
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Standard output is empty
https://ideone.com/u3wq04
language:
C++ (gcc 8.3)
created:
3 years ago
visibility:
public

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